How to replace the Hydroboost unit on a Chevy Astro van?
If your Astro van is performing poorly (or perhaps not at all), one solution is to replace the hydroboost. Fix your power brakes and power steering with a new hydroboost. You’ll need some moderate familiarity with auto mechanics to do this. If playback doesn’t begin shortly, try restarting your device.
How big is the pushrod on Astro van Hydroboost?
If the two are different by more than a half inch, you will probably have to do some modifying on the pushrod. Ours measured up within an 1/8th of an inch. In the second picture, the bolt pattern on the mounting flange of the Astro van’s hydroboost is 3 1/2x 3 1/2 inches, nearly identical to our CPP booster.
How big is the flange on an Astro van Hydroboost?
In the second picture, the bolt pattern on the mounting flange of the Astro van’s hydroboost is 3 1/2x 3 1/2 inches, nearly identical to our CPP booster. A little work with the die grinder and a carbide bit opened up the holes in the firewall just a bit to let the studs of the hydroboost slide right in. One last thing to note.
What kind of car does GM use Hydroboost on?
GM used its hydroboost power assist on gas engined heavy duty trucks that were under a lot of load nearly all the time. They also used it on heavy cars, diesel powered vehicles, and on vehicles where there isn’t enough room for a vacuum booster.
Where did the Astro Hydroboost unit come from?
I picked this unit up off a 1992 Astro Van at a you-pull-it salvage yard for 30 dollars. I clean it up already because it looked pretty rough, but a good deal if this works out.
What kind of Hydroboost is used in Ford Mustang GT?
The Hydroboost unit is made by Bendix and is mostly used by GM and Ford for their diesel pickup trucks (e.g. F350) because diesels produce no vacuum. They are also used in the Mustang GT and a few other performance cars. In brief, Bendix makes one core for Ford and a different one for GM.
How do you mount an astro Hydro Booster?
The center nut for the plate is pretty tight in there so I plan to clearance the mounts with a grinder. The proportioning valve mount of our cars will bolt right up to the Astro’s booster. I cut the rod end off the Astro hydro booster in order to attach the original rod from my car.
Do you use 90 degree bend hose ends on Astro van?
I used (4) 90 degree bend hose ends: Don’t use the Astro van valve – its not worth it. The chances of the Astro van front/rear bias being the same as your Bronco are slim to none. Buy a proportioning valve and take it out to a parking lot and adjust until you have it set right so front/rear lock up equally.